Global Patent Index - EP 0019666 A1

EP 0019666 A1 19801210 - Lens turret.

Title (en)

Lens turret.

Title (de)

Objektivrevolver.

Title (fr)

Tourelle à objectifs.

Publication

EP 0019666 A1 19801210 (EN)

Application

EP 79200261 A 19790528

Priority

EP 79200261 A 19790528

Abstract (en)

[origin: US4307940A] An optical apparatus for setting any one of a plurality of lenses in a certain operating position and for setting the opening of at least one of the lenses comprises a lens turret rotatable around an axis and having the lenses mounted thereon at locations spaced apart about the same axis, a gear on at least one of the lenses and turnable relative to the turret for adjusting the lens opening, and a drive system including a shaft coaxial with and rotatable in either direction about the axis and carrying a drive gear engaging each adjusting gear for turning the lens turret and each adjusting gear. At least one of the adjusting gears has a limited range of rotation relative to the lens turret in at least one direction so that the turret is rotatable by the drive gear through an adjusting gear when the latter is at a limit of its range of relative rotation. Preferably each lens is provided with an adjusting gear and only one drive gear is employed, which at any moment drivably engages all the adjusting gears.

IPC 1-7

G02B 7/16; G03B 27/32

IPC 8 full level

G02B 7/16 (2006.01); G03B 27/32 (2006.01); G03B 27/34 (2006.01)

CPC (source: EP US)

G02B 7/16 (2013.01 - EP US); G03B 27/32 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT NL SE

DOCDB simple family (publication)

EP 0019666 A1 19801210; EP 0019666 B1 19831130; DE 2966442 D1 19840105; DK 162180 A 19801129; JP S561007 A 19810108; JP S6242485 B2 19870908; US 4307940 A 19811229

DOCDB simple family (application)

EP 79200261 A 19790528; DE 2966442 T 19790528; DK 162180 A 19800416; JP 6704780 A 19800519; US 15326780 A 19800527